diff --git a/conf/compose/element.docker-compose.yml b/conf/compose/element.docker-compose.yml
index 7152ba3..56fec63 100644
--- a/conf/compose/element.docker-compose.yml
+++ b/conf/compose/element.docker-compose.yml
@@ -38,7 +38,7 @@ services:
       test: ['CMD', 'pg_isready', '-U', 'postgres']
     environment:
       - 'POSTGRES_DB=synapse'
-      - 'POSTGRES_USER=synapse'
+      - 'POSTGRES_USER=postgres'
       - 'POSTGRES_HOST_AUTH_METHOD=trust'
       - 'POSTGRES_INITDB_ARGS=--encoding="UTF8" --lc-collate="C" --lc-ctype="C"'
     volumes:
diff --git a/install.sh b/install.sh
index 9d3242d..56dc508 100755
--- a/install.sh
+++ b/install.sh
@@ -84,7 +84,7 @@ matrix_config () {
     printf "rc_registration:\n  per_second: 0.1 \n  burst_count: 2\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
     printf "presence:\n  enabled: false\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
     printf "database:\n  name: psycopg2\n  txn_limit: 10000\n  args:\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
-    printf "    user: synapse\n    password: null\n    database: synapse\n    host: localhost\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
+    printf "    user: postgres\n    password: null\n    database: synapse\n    host: localhost\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
     printf "    port: 5432\n    cp_min: 5\n    cp_max: 10\n" >> $DCOMMS_DIR/conf/synapse/homeserver.yaml
 
     sed -i "s/TEMPLATE/$DWEB_DOMAIN/" $DCOMMS_DIR/conf/element/config.json